FOAMED POLYMER FOR USAGE AS DIELECTRIC MATERIAL

摘要

PURPOSE: To provide a foaming polymer which is used as a dielectric material and whose hole diameter is smaller than 1000Å, and a manufacturing method therefor. CONSTITUTION: This foaming polymer is manufactured by the following process; (a) to generate a copolymer of a matrix polymer and a thermally decomposable polymer thermally decomposed at a temperature lower a decomposing temperature of the matrix polymer and (b) to generate a foaming polymer by heating the colpolymer to a decomposing temperature of the thermally decomposable polymer or a temperature not less than it and a temperature lower than a decomposing temperature of the matrix polymer.